Jan Engelhardt | a8ad34c | 2008-01-29 13:37:21 +0000 | [diff] [blame] | 1 | /* |
| 2 | * libxt_conntrack |
| 3 | * Shared library add-on to iptables for conntrack matching support. |
| 4 | * |
| 5 | * GPL (C) 2001 Marc Boucher (marc@mbsi.ca). |
| 6 | * Copyright © CC Computer Consultants GmbH, 2007 - 2008 |
| 7 | * Jan Engelhardt <jengelh@computergmbh.de> |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 8 | */ |
Jan Engelhardt | a8ad34c | 2008-01-29 13:37:21 +0000 | [diff] [blame] | 9 | #include <sys/socket.h> |
| 10 | #include <sys/types.h> |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 11 | #include <ctype.h> |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 12 | #include <getopt.h> |
| 13 | #include <netdb.h> |
Jan Engelhardt | a8ad34c | 2008-01-29 13:37:21 +0000 | [diff] [blame] | 14 | #include <stdbool.h> |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 15 | #include <stdio.h> |
| 16 | #include <stdlib.h> |
| 17 | #include <string.h> |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 18 | #include <iptables.h> |
Jan Engelhardt | 08b1616 | 2008-01-20 13:36:08 +0000 | [diff] [blame] | 19 | #include <xtables.h> |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 20 | #include <linux/netfilter.h> |
| 21 | #include <linux/netfilter/xt_conntrack.h> |
Patrick McHardy | 40d5475 | 2007-04-18 07:00:36 +0000 | [diff] [blame] | 22 | #include <linux/netfilter/nf_conntrack_common.h> |
Jan Engelhardt | a8ad34c | 2008-01-29 13:37:21 +0000 | [diff] [blame] | 23 | #include <arpa/inet.h> |
Harald Welte | 4dc734c | 2003-10-07 18:55:13 +0000 | [diff] [blame] | 24 | |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 25 | static void conntrack_mt_help(void) |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 26 | { |
| 27 | printf( |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 28 | "conntrack match options:\n" |
| 29 | "[!] --ctstate {INVALID|ESTABLISHED|NEW|RELATED|UNTRACKED|SNAT|DNAT}[,...]\n" |
| 30 | " State(s) to match\n" |
| 31 | "[!] --ctproto proto Protocol to match; by number or name, e.g. \"tcp\"\n" |
| 32 | "[!] --ctorigsrc address[/mask]\n" |
| 33 | "[!] --ctorigdst address[/mask]\n" |
| 34 | "[!] --ctreplsrc address[/mask]\n" |
| 35 | "[!] --ctrepldst address[/mask]\n" |
| 36 | " Original/Reply source/destination address\n" |
Jan Engelhardt | a8ad34c | 2008-01-29 13:37:21 +0000 | [diff] [blame] | 37 | "[!] --ctorigsrcport port\n" |
| 38 | "[!] --ctorigdstport port\n" |
| 39 | "[!] --ctreplsrcport port\n" |
| 40 | "[!] --ctrepldstport port\n" |
| 41 | " TCP/UDP/SCTP orig./reply source/destination port\n" |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 42 | "[!] --ctstatus {NONE|EXPECTED|SEEN_REPLY|ASSURED|CONFIRMED}[,...]\n" |
| 43 | " Status(es) to match\n" |
| 44 | "[!] --ctexpire time[:time] Match remaining lifetime in seconds against\n" |
| 45 | " value or range of values (inclusive)\n" |
Jan Engelhardt | 8b7c64d | 2008-04-15 11:48:25 +0200 | [diff] [blame] | 46 | " --ctdir {ORIGINAL|REPLY} Flow direction of packet\n"); |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 47 | } |
| 48 | |
Jan Engelhardt | a8ad34c | 2008-01-29 13:37:21 +0000 | [diff] [blame] | 49 | static const struct option conntrack_mt_opts_v0[] = { |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 50 | {.name = "ctstate", .has_arg = true, .val = '1'}, |
| 51 | {.name = "ctproto", .has_arg = true, .val = '2'}, |
| 52 | {.name = "ctorigsrc", .has_arg = true, .val = '3'}, |
| 53 | {.name = "ctorigdst", .has_arg = true, .val = '4'}, |
| 54 | {.name = "ctreplsrc", .has_arg = true, .val = '5'}, |
| 55 | {.name = "ctrepldst", .has_arg = true, .val = '6'}, |
| 56 | {.name = "ctstatus", .has_arg = true, .val = '7'}, |
| 57 | {.name = "ctexpire", .has_arg = true, .val = '8'}, |
Max Kellermann | 9ee386a | 2008-01-29 13:48:05 +0000 | [diff] [blame] | 58 | { .name = NULL } |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 59 | }; |
| 60 | |
Jan Engelhardt | a8ad34c | 2008-01-29 13:37:21 +0000 | [diff] [blame] | 61 | static const struct option conntrack_mt_opts[] = { |
| 62 | {.name = "ctstate", .has_arg = true, .val = '1'}, |
| 63 | {.name = "ctproto", .has_arg = true, .val = '2'}, |
| 64 | {.name = "ctorigsrc", .has_arg = true, .val = '3'}, |
| 65 | {.name = "ctorigdst", .has_arg = true, .val = '4'}, |
| 66 | {.name = "ctreplsrc", .has_arg = true, .val = '5'}, |
| 67 | {.name = "ctrepldst", .has_arg = true, .val = '6'}, |
| 68 | {.name = "ctstatus", .has_arg = true, .val = '7'}, |
| 69 | {.name = "ctexpire", .has_arg = true, .val = '8'}, |
| 70 | {.name = "ctorigsrcport", .has_arg = true, .val = 'a'}, |
| 71 | {.name = "ctorigdstport", .has_arg = true, .val = 'b'}, |
| 72 | {.name = "ctreplsrcport", .has_arg = true, .val = 'c'}, |
| 73 | {.name = "ctrepldstport", .has_arg = true, .val = 'd'}, |
| 74 | {.name = "ctdir", .has_arg = true, .val = 'e'}, |
Max Kellermann | 9ee386a | 2008-01-29 13:48:05 +0000 | [diff] [blame] | 75 | {.name = NULL}, |
Jan Engelhardt | a8ad34c | 2008-01-29 13:37:21 +0000 | [diff] [blame] | 76 | }; |
| 77 | |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 78 | static int |
Jan Engelhardt | dbb7754 | 2008-02-11 00:33:30 +0100 | [diff] [blame] | 79 | parse_state(const char *state, size_t len, struct xt_conntrack_info *sinfo) |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 80 | { |
Jan Engelhardt | dbb7754 | 2008-02-11 00:33:30 +0100 | [diff] [blame] | 81 | if (strncasecmp(state, "INVALID", len) == 0) |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 82 | sinfo->statemask |= XT_CONNTRACK_STATE_INVALID; |
Jan Engelhardt | dbb7754 | 2008-02-11 00:33:30 +0100 | [diff] [blame] | 83 | else if (strncasecmp(state, "NEW", len) == 0) |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 84 | sinfo->statemask |= XT_CONNTRACK_STATE_BIT(IP_CT_NEW); |
Jan Engelhardt | dbb7754 | 2008-02-11 00:33:30 +0100 | [diff] [blame] | 85 | else if (strncasecmp(state, "ESTABLISHED", len) == 0) |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 86 | sinfo->statemask |= XT_CONNTRACK_STATE_BIT(IP_CT_ESTABLISHED); |
Jan Engelhardt | dbb7754 | 2008-02-11 00:33:30 +0100 | [diff] [blame] | 87 | else if (strncasecmp(state, "RELATED", len) == 0) |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 88 | sinfo->statemask |= XT_CONNTRACK_STATE_BIT(IP_CT_RELATED); |
Jan Engelhardt | dbb7754 | 2008-02-11 00:33:30 +0100 | [diff] [blame] | 89 | else if (strncasecmp(state, "UNTRACKED", len) == 0) |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 90 | sinfo->statemask |= XT_CONNTRACK_STATE_UNTRACKED; |
Jan Engelhardt | dbb7754 | 2008-02-11 00:33:30 +0100 | [diff] [blame] | 91 | else if (strncasecmp(state, "SNAT", len) == 0) |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 92 | sinfo->statemask |= XT_CONNTRACK_STATE_SNAT; |
Jan Engelhardt | dbb7754 | 2008-02-11 00:33:30 +0100 | [diff] [blame] | 93 | else if (strncasecmp(state, "DNAT", len) == 0) |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 94 | sinfo->statemask |= XT_CONNTRACK_STATE_DNAT; |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 95 | else |
| 96 | return 0; |
| 97 | return 1; |
| 98 | } |
| 99 | |
| 100 | static void |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 101 | parse_states(const char *arg, struct xt_conntrack_info *sinfo) |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 102 | { |
| 103 | const char *comma; |
| 104 | |
| 105 | while ((comma = strchr(arg, ',')) != NULL) { |
| 106 | if (comma == arg || !parse_state(arg, comma-arg, sinfo)) |
| 107 | exit_error(PARAMETER_PROBLEM, "Bad ctstate `%s'", arg); |
| 108 | arg = comma+1; |
| 109 | } |
| 110 | |
| 111 | if (strlen(arg) == 0 || !parse_state(arg, strlen(arg), sinfo)) |
| 112 | exit_error(PARAMETER_PROBLEM, "Bad ctstate `%s'", arg); |
| 113 | } |
| 114 | |
Jan Engelhardt | a8ad34c | 2008-01-29 13:37:21 +0000 | [diff] [blame] | 115 | static bool |
| 116 | conntrack_ps_state(struct xt_conntrack_mtinfo1 *info, const char *state, |
| 117 | size_t z) |
| 118 | { |
| 119 | if (strncasecmp(state, "INVALID", z) == 0) |
| 120 | info->state_mask |= XT_CONNTRACK_STATE_INVALID; |
| 121 | else if (strncasecmp(state, "NEW", z) == 0) |
| 122 | info->state_mask |= XT_CONNTRACK_STATE_BIT(IP_CT_NEW); |
| 123 | else if (strncasecmp(state, "ESTABLISHED", z) == 0) |
| 124 | info->state_mask |= XT_CONNTRACK_STATE_BIT(IP_CT_ESTABLISHED); |
| 125 | else if (strncasecmp(state, "RELATED", z) == 0) |
| 126 | info->state_mask |= XT_CONNTRACK_STATE_BIT(IP_CT_RELATED); |
| 127 | else if (strncasecmp(state, "UNTRACKED", z) == 0) |
| 128 | info->state_mask |= XT_CONNTRACK_STATE_UNTRACKED; |
| 129 | else if (strncasecmp(state, "SNAT", z) == 0) |
| 130 | info->state_mask |= XT_CONNTRACK_STATE_SNAT; |
| 131 | else if (strncasecmp(state, "DNAT", z) == 0) |
| 132 | info->state_mask |= XT_CONNTRACK_STATE_DNAT; |
| 133 | else |
| 134 | return false; |
| 135 | return true; |
| 136 | } |
| 137 | |
| 138 | static void |
| 139 | conntrack_ps_states(struct xt_conntrack_mtinfo1 *info, const char *arg) |
| 140 | { |
| 141 | const char *comma; |
| 142 | |
| 143 | while ((comma = strchr(arg, ',')) != NULL) { |
| 144 | if (comma == arg || !conntrack_ps_state(info, arg, comma - arg)) |
| 145 | exit_error(PARAMETER_PROBLEM, |
| 146 | "Bad ctstate \"%s\"", arg); |
| 147 | arg = comma + 1; |
| 148 | } |
| 149 | |
| 150 | if (strlen(arg) == 0 || !conntrack_ps_state(info, arg, strlen(arg))) |
| 151 | exit_error(PARAMETER_PROBLEM, "Bad ctstate \"%s\"", arg); |
| 152 | } |
| 153 | |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 154 | static int |
Jan Engelhardt | dbb7754 | 2008-02-11 00:33:30 +0100 | [diff] [blame] | 155 | parse_status(const char *status, size_t len, struct xt_conntrack_info *sinfo) |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 156 | { |
Jan Engelhardt | dbb7754 | 2008-02-11 00:33:30 +0100 | [diff] [blame] | 157 | if (strncasecmp(status, "NONE", len) == 0) |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 158 | sinfo->statusmask |= 0; |
Jan Engelhardt | dbb7754 | 2008-02-11 00:33:30 +0100 | [diff] [blame] | 159 | else if (strncasecmp(status, "EXPECTED", len) == 0) |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 160 | sinfo->statusmask |= IPS_EXPECTED; |
Jan Engelhardt | dbb7754 | 2008-02-11 00:33:30 +0100 | [diff] [blame] | 161 | else if (strncasecmp(status, "SEEN_REPLY", len) == 0) |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 162 | sinfo->statusmask |= IPS_SEEN_REPLY; |
Jan Engelhardt | dbb7754 | 2008-02-11 00:33:30 +0100 | [diff] [blame] | 163 | else if (strncasecmp(status, "ASSURED", len) == 0) |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 164 | sinfo->statusmask |= IPS_ASSURED; |
Harald Welte | a643c3e | 2003-08-25 11:08:52 +0000 | [diff] [blame] | 165 | #ifdef IPS_CONFIRMED |
Jan Engelhardt | dbb7754 | 2008-02-11 00:33:30 +0100 | [diff] [blame] | 166 | else if (strncasecmp(status, "CONFIRMED", len) == 0) |
Jan Engelhardt | a8ad34c | 2008-01-29 13:37:21 +0000 | [diff] [blame] | 167 | sinfo->statusmask |= IPS_CONFIRMED; |
Harald Welte | a643c3e | 2003-08-25 11:08:52 +0000 | [diff] [blame] | 168 | #endif |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 169 | else |
| 170 | return 0; |
| 171 | return 1; |
| 172 | } |
| 173 | |
| 174 | static void |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 175 | parse_statuses(const char *arg, struct xt_conntrack_info *sinfo) |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 176 | { |
| 177 | const char *comma; |
| 178 | |
| 179 | while ((comma = strchr(arg, ',')) != NULL) { |
| 180 | if (comma == arg || !parse_status(arg, comma-arg, sinfo)) |
| 181 | exit_error(PARAMETER_PROBLEM, "Bad ctstatus `%s'", arg); |
| 182 | arg = comma+1; |
| 183 | } |
| 184 | |
| 185 | if (strlen(arg) == 0 || !parse_status(arg, strlen(arg), sinfo)) |
| 186 | exit_error(PARAMETER_PROBLEM, "Bad ctstatus `%s'", arg); |
| 187 | } |
| 188 | |
Jan Engelhardt | a8ad34c | 2008-01-29 13:37:21 +0000 | [diff] [blame] | 189 | static bool |
| 190 | conntrack_ps_status(struct xt_conntrack_mtinfo1 *info, const char *status, |
| 191 | size_t z) |
| 192 | { |
| 193 | if (strncasecmp(status, "NONE", z) == 0) |
| 194 | info->status_mask |= 0; |
| 195 | else if (strncasecmp(status, "EXPECTED", z) == 0) |
| 196 | info->status_mask |= IPS_EXPECTED; |
| 197 | else if (strncasecmp(status, "SEEN_REPLY", z) == 0) |
| 198 | info->status_mask |= IPS_SEEN_REPLY; |
| 199 | else if (strncasecmp(status, "ASSURED", z) == 0) |
| 200 | info->status_mask |= IPS_ASSURED; |
| 201 | else if (strncasecmp(status, "CONFIRMED", z) == 0) |
| 202 | info->status_mask |= IPS_CONFIRMED; |
| 203 | else |
| 204 | return false; |
| 205 | return true; |
| 206 | } |
| 207 | |
| 208 | static void |
| 209 | conntrack_ps_statuses(struct xt_conntrack_mtinfo1 *info, const char *arg) |
| 210 | { |
| 211 | const char *comma; |
| 212 | |
| 213 | while ((comma = strchr(arg, ',')) != NULL) { |
| 214 | if (comma == arg || !conntrack_ps_status(info, arg, comma - arg)) |
| 215 | exit_error(PARAMETER_PROBLEM, |
| 216 | "Bad ctstatus \"%s\"", arg); |
| 217 | arg = comma + 1; |
| 218 | } |
| 219 | |
| 220 | if (strlen(arg) == 0 || !conntrack_ps_status(info, arg, strlen(arg))) |
| 221 | exit_error(PARAMETER_PROBLEM, "Bad ctstatus \"%s\"", arg); |
| 222 | } |
| 223 | |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 224 | static unsigned long |
| 225 | parse_expire(const char *s) |
| 226 | { |
| 227 | unsigned int len; |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 228 | |
Martin Josefsson | 1da399c | 2004-05-26 15:50:57 +0000 | [diff] [blame] | 229 | if (string_to_number(s, 0, 0, &len) == -1) |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 230 | exit_error(PARAMETER_PROBLEM, "expire value invalid: `%s'\n", s); |
| 231 | else |
| 232 | return len; |
| 233 | } |
| 234 | |
| 235 | /* If a single value is provided, min and max are both set to the value */ |
| 236 | static void |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 237 | parse_expires(const char *s, struct xt_conntrack_info *sinfo) |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 238 | { |
| 239 | char *buffer; |
| 240 | char *cp; |
| 241 | |
| 242 | buffer = strdup(s); |
| 243 | if ((cp = strchr(buffer, ':')) == NULL) |
Jan Engelhardt | a8ad34c | 2008-01-29 13:37:21 +0000 | [diff] [blame] | 244 | sinfo->expires_min = sinfo->expires_max = |
| 245 | parse_expire(buffer); |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 246 | else { |
| 247 | *cp = '\0'; |
| 248 | cp++; |
| 249 | |
| 250 | sinfo->expires_min = buffer[0] ? parse_expire(buffer) : 0; |
Max Kellermann | 9ee386a | 2008-01-29 13:48:05 +0000 | [diff] [blame] | 251 | sinfo->expires_max = cp[0] |
| 252 | ? parse_expire(cp) |
| 253 | : (unsigned long)-1; |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 254 | } |
| 255 | free(buffer); |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 256 | |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 257 | if (sinfo->expires_min > sinfo->expires_max) |
| 258 | exit_error(PARAMETER_PROBLEM, |
| 259 | "expire min. range value `%lu' greater than max. " |
| 260 | "range value `%lu'", sinfo->expires_min, sinfo->expires_max); |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 261 | } |
| 262 | |
Jan Engelhardt | a8ad34c | 2008-01-29 13:37:21 +0000 | [diff] [blame] | 263 | static void |
| 264 | conntrack_ps_expires(struct xt_conntrack_mtinfo1 *info, const char *s) |
| 265 | { |
| 266 | unsigned int min, max; |
| 267 | char *end; |
| 268 | |
| 269 | if (!strtonum(s, &end, &min, 0, ~0)) |
| 270 | param_act(P_BAD_VALUE, "conntrack", "--expires", s); |
| 271 | max = min; |
| 272 | if (*end == ':') |
| 273 | if (!strtonum(s, &end, &max, 0, ~0U)) |
| 274 | param_act(P_BAD_VALUE, "conntrack", "--expires", s); |
| 275 | if (*end != '\0') |
| 276 | param_act(P_BAD_VALUE, "conntrack", "--expires", s); |
| 277 | |
| 278 | if (min > max) |
| 279 | exit_error(PARAMETER_PROBLEM, |
| 280 | "expire min. range value \"%u\" greater than max. " |
| 281 | "range value \"%u\"", min, max); |
| 282 | |
| 283 | info->expires_min = min; |
| 284 | info->expires_max = max; |
| 285 | } |
| 286 | |
Jan Engelhardt | 59d1640 | 2007-10-04 16:28:39 +0000 | [diff] [blame] | 287 | static int conntrack_parse(int c, char **argv, int invert, unsigned int *flags, |
| 288 | const void *entry, struct xt_entry_match **match) |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 289 | { |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 290 | struct xt_conntrack_info *sinfo = (void *)(*match)->data; |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 291 | char *protocol = NULL; |
| 292 | unsigned int naddrs = 0; |
| 293 | struct in_addr *addrs = NULL; |
| 294 | |
| 295 | |
| 296 | switch (c) { |
| 297 | case '1': |
Harald Welte | b77f1da | 2002-03-14 11:35:58 +0000 | [diff] [blame] | 298 | check_inverse(optarg, &invert, &optind, 0); |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 299 | |
| 300 | parse_states(argv[optind-1], sinfo); |
| 301 | if (invert) { |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 302 | sinfo->invflags |= XT_CONNTRACK_STATE; |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 303 | } |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 304 | sinfo->flags |= XT_CONNTRACK_STATE; |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 305 | break; |
| 306 | |
| 307 | case '2': |
Harald Welte | 3c5bd60 | 2002-03-14 19:54:34 +0000 | [diff] [blame] | 308 | check_inverse(optarg, &invert, &optind, 0); |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 309 | |
| 310 | if(invert) |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 311 | sinfo->invflags |= XT_CONNTRACK_PROTO; |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 312 | |
| 313 | /* Canonicalize into lower case */ |
| 314 | for (protocol = argv[optind-1]; *protocol; protocol++) |
| 315 | *protocol = tolower(*protocol); |
| 316 | |
| 317 | protocol = argv[optind-1]; |
| 318 | sinfo->tuple[IP_CT_DIR_ORIGINAL].dst.protonum = parse_protocol(protocol); |
| 319 | |
| 320 | if (sinfo->tuple[IP_CT_DIR_ORIGINAL].dst.protonum == 0 |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 321 | && (sinfo->invflags & XT_INV_PROTO)) |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 322 | exit_error(PARAMETER_PROBLEM, |
| 323 | "rule would never match protocol"); |
| 324 | |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 325 | sinfo->flags |= XT_CONNTRACK_PROTO; |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 326 | break; |
| 327 | |
| 328 | case '3': |
Jan Engelhardt | 40eaf2a | 2007-11-25 15:25:23 +0000 | [diff] [blame] | 329 | check_inverse(optarg, &invert, &optind, 0); |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 330 | |
| 331 | if (invert) |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 332 | sinfo->invflags |= XT_CONNTRACK_ORIGSRC; |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 333 | |
Jan Engelhardt | bd94384 | 2008-01-20 13:38:08 +0000 | [diff] [blame] | 334 | ipparse_hostnetworkmask(argv[optind-1], &addrs, |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 335 | &sinfo->sipmsk[IP_CT_DIR_ORIGINAL], |
| 336 | &naddrs); |
| 337 | if(naddrs > 1) |
| 338 | exit_error(PARAMETER_PROBLEM, |
| 339 | "multiple IP addresses not allowed"); |
| 340 | |
| 341 | if(naddrs == 1) { |
| 342 | sinfo->tuple[IP_CT_DIR_ORIGINAL].src.ip = addrs[0].s_addr; |
| 343 | } |
| 344 | |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 345 | sinfo->flags |= XT_CONNTRACK_ORIGSRC; |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 346 | break; |
| 347 | |
| 348 | case '4': |
Harald Welte | b77f1da | 2002-03-14 11:35:58 +0000 | [diff] [blame] | 349 | check_inverse(optarg, &invert, &optind, 0); |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 350 | |
| 351 | if (invert) |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 352 | sinfo->invflags |= XT_CONNTRACK_ORIGDST; |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 353 | |
Jan Engelhardt | bd94384 | 2008-01-20 13:38:08 +0000 | [diff] [blame] | 354 | ipparse_hostnetworkmask(argv[optind-1], &addrs, |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 355 | &sinfo->dipmsk[IP_CT_DIR_ORIGINAL], |
| 356 | &naddrs); |
| 357 | if(naddrs > 1) |
| 358 | exit_error(PARAMETER_PROBLEM, |
| 359 | "multiple IP addresses not allowed"); |
| 360 | |
| 361 | if(naddrs == 1) { |
| 362 | sinfo->tuple[IP_CT_DIR_ORIGINAL].dst.ip = addrs[0].s_addr; |
| 363 | } |
| 364 | |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 365 | sinfo->flags |= XT_CONNTRACK_ORIGDST; |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 366 | break; |
| 367 | |
| 368 | case '5': |
Harald Welte | b77f1da | 2002-03-14 11:35:58 +0000 | [diff] [blame] | 369 | check_inverse(optarg, &invert, &optind, 0); |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 370 | |
| 371 | if (invert) |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 372 | sinfo->invflags |= XT_CONNTRACK_REPLSRC; |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 373 | |
Jan Engelhardt | bd94384 | 2008-01-20 13:38:08 +0000 | [diff] [blame] | 374 | ipparse_hostnetworkmask(argv[optind-1], &addrs, |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 375 | &sinfo->sipmsk[IP_CT_DIR_REPLY], |
| 376 | &naddrs); |
| 377 | if(naddrs > 1) |
| 378 | exit_error(PARAMETER_PROBLEM, |
| 379 | "multiple IP addresses not allowed"); |
| 380 | |
| 381 | if(naddrs == 1) { |
| 382 | sinfo->tuple[IP_CT_DIR_REPLY].src.ip = addrs[0].s_addr; |
| 383 | } |
| 384 | |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 385 | sinfo->flags |= XT_CONNTRACK_REPLSRC; |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 386 | break; |
| 387 | |
| 388 | case '6': |
Harald Welte | b77f1da | 2002-03-14 11:35:58 +0000 | [diff] [blame] | 389 | check_inverse(optarg, &invert, &optind, 0); |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 390 | |
| 391 | if (invert) |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 392 | sinfo->invflags |= XT_CONNTRACK_REPLDST; |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 393 | |
Jan Engelhardt | bd94384 | 2008-01-20 13:38:08 +0000 | [diff] [blame] | 394 | ipparse_hostnetworkmask(argv[optind-1], &addrs, |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 395 | &sinfo->dipmsk[IP_CT_DIR_REPLY], |
| 396 | &naddrs); |
| 397 | if(naddrs > 1) |
| 398 | exit_error(PARAMETER_PROBLEM, |
| 399 | "multiple IP addresses not allowed"); |
| 400 | |
| 401 | if(naddrs == 1) { |
| 402 | sinfo->tuple[IP_CT_DIR_REPLY].dst.ip = addrs[0].s_addr; |
| 403 | } |
| 404 | |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 405 | sinfo->flags |= XT_CONNTRACK_REPLDST; |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 406 | break; |
| 407 | |
| 408 | case '7': |
Harald Welte | b77f1da | 2002-03-14 11:35:58 +0000 | [diff] [blame] | 409 | check_inverse(optarg, &invert, &optind, 0); |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 410 | |
| 411 | parse_statuses(argv[optind-1], sinfo); |
| 412 | if (invert) { |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 413 | sinfo->invflags |= XT_CONNTRACK_STATUS; |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 414 | } |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 415 | sinfo->flags |= XT_CONNTRACK_STATUS; |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 416 | break; |
| 417 | |
| 418 | case '8': |
Harald Welte | b77f1da | 2002-03-14 11:35:58 +0000 | [diff] [blame] | 419 | check_inverse(optarg, &invert, &optind, 0); |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 420 | |
| 421 | parse_expires(argv[optind-1], sinfo); |
| 422 | if (invert) { |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 423 | sinfo->invflags |= XT_CONNTRACK_EXPIRES; |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 424 | } |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 425 | sinfo->flags |= XT_CONNTRACK_EXPIRES; |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 426 | break; |
| 427 | |
| 428 | default: |
| 429 | return 0; |
| 430 | } |
| 431 | |
| 432 | *flags = sinfo->flags; |
| 433 | return 1; |
| 434 | } |
| 435 | |
Jan Engelhardt | a8ad34c | 2008-01-29 13:37:21 +0000 | [diff] [blame] | 436 | static int |
| 437 | conntrack_mt_parse(int c, char **argv, int invert, unsigned int *flags, |
| 438 | struct xt_entry_match **match) |
| 439 | { |
| 440 | struct xt_conntrack_mtinfo1 *info = (void *)(*match)->data; |
| 441 | unsigned int port; |
| 442 | char *p; |
| 443 | |
| 444 | switch (c) { |
| 445 | case '1': /* --ctstate */ |
| 446 | conntrack_ps_states(info, optarg); |
| 447 | info->match_flags |= XT_CONNTRACK_STATE; |
| 448 | if (invert) |
| 449 | info->invert_flags |= XT_CONNTRACK_STATE; |
| 450 | break; |
| 451 | |
| 452 | case '2': /* --ctproto */ |
| 453 | /* Canonicalize into lower case */ |
| 454 | for (p = optarg; *p != '\0'; ++p) |
| 455 | *p = tolower(*p); |
| 456 | info->l4proto = parse_protocol(optarg); |
| 457 | |
| 458 | if (info->l4proto == 0 && (info->invert_flags & XT_INV_PROTO)) |
| 459 | exit_error(PARAMETER_PROBLEM, "conntrack: rule would " |
| 460 | "never match protocol"); |
| 461 | |
| 462 | info->match_flags |= XT_CONNTRACK_PROTO; |
| 463 | if (invert) |
| 464 | info->invert_flags |= XT_CONNTRACK_PROTO; |
| 465 | break; |
| 466 | |
| 467 | case '7': /* --ctstatus */ |
| 468 | conntrack_ps_statuses(info, optarg); |
| 469 | info->match_flags |= XT_CONNTRACK_STATUS; |
| 470 | if (invert) |
| 471 | info->invert_flags |= XT_CONNTRACK_STATUS; |
| 472 | break; |
| 473 | |
| 474 | case '8': /* --ctexpire */ |
| 475 | conntrack_ps_expires(info, optarg); |
| 476 | info->match_flags |= XT_CONNTRACK_EXPIRES; |
| 477 | if (invert) |
| 478 | info->invert_flags |= XT_CONNTRACK_EXPIRES; |
| 479 | break; |
| 480 | |
| 481 | case 'a': /* --ctorigsrcport */ |
| 482 | if (!strtonum(optarg, NULL, &port, 0, ~(u_int16_t)0)) |
| 483 | param_act(P_BAD_VALUE, "conntrack", |
| 484 | "--ctorigsrcport", optarg); |
| 485 | info->match_flags |= XT_CONNTRACK_ORIGSRC_PORT; |
| 486 | info->origsrc_port = htons(port); |
| 487 | if (invert) |
| 488 | info->invert_flags |= XT_CONNTRACK_ORIGSRC_PORT; |
| 489 | break; |
| 490 | |
| 491 | case 'b': /* --ctorigdstport */ |
| 492 | if (!strtonum(optarg, NULL, &port, 0, ~(u_int16_t)0)) |
| 493 | param_act(P_BAD_VALUE, "conntrack", |
| 494 | "--ctorigdstport", optarg); |
| 495 | info->match_flags |= XT_CONNTRACK_ORIGDST_PORT; |
| 496 | info->origdst_port = htons(port); |
| 497 | if (invert) |
| 498 | info->invert_flags |= XT_CONNTRACK_ORIGDST_PORT; |
| 499 | break; |
| 500 | |
| 501 | case 'c': /* --ctreplsrcport */ |
| 502 | if (!strtonum(optarg, NULL, &port, 0, ~(u_int16_t)0)) |
| 503 | param_act(P_BAD_VALUE, "conntrack", |
| 504 | "--ctreplsrcport", optarg); |
| 505 | info->match_flags |= XT_CONNTRACK_REPLSRC_PORT; |
| 506 | info->replsrc_port = htons(port); |
| 507 | if (invert) |
| 508 | info->invert_flags |= XT_CONNTRACK_REPLSRC_PORT; |
| 509 | break; |
| 510 | |
| 511 | case 'd': /* --ctrepldstport */ |
| 512 | if (!strtonum(optarg, NULL, &port, 0, ~(u_int16_t)0)) |
| 513 | param_act(P_BAD_VALUE, "conntrack", |
| 514 | "--ctrepldstport", optarg); |
| 515 | info->match_flags |= XT_CONNTRACK_REPLDST_PORT; |
| 516 | info->repldst_port = htons(port); |
| 517 | if (invert) |
| 518 | info->invert_flags |= XT_CONNTRACK_REPLDST_PORT; |
| 519 | break; |
| 520 | |
| 521 | case 'e': /* --ctdir */ |
| 522 | param_act(P_NO_INVERT, "conntrack", "--ctdir", invert); |
| 523 | if (strcasecmp(optarg, "ORIGINAL") == 0) { |
| 524 | info->match_flags |= XT_CONNTRACK_DIRECTION; |
| 525 | info->invert_flags &= ~XT_CONNTRACK_DIRECTION; |
| 526 | } else if (strcasecmp(optarg, "REPLY") == 0) { |
| 527 | info->match_flags |= XT_CONNTRACK_DIRECTION; |
| 528 | info->invert_flags |= XT_CONNTRACK_DIRECTION; |
| 529 | } else { |
| 530 | param_act(P_BAD_VALUE, "conntrack", "--ctdir", optarg); |
| 531 | } |
| 532 | break; |
| 533 | |
| 534 | default: |
| 535 | return false; |
| 536 | } |
| 537 | |
| 538 | *flags = info->match_flags; |
| 539 | return true; |
| 540 | } |
| 541 | |
| 542 | static int |
| 543 | conntrack_mt4_parse(int c, char **argv, int invert, unsigned int *flags, |
| 544 | const void *entry, struct xt_entry_match **match) |
| 545 | { |
| 546 | struct xt_conntrack_mtinfo1 *info = (void *)(*match)->data; |
| 547 | struct in_addr *addr = NULL; |
| 548 | unsigned int naddrs = 0; |
| 549 | |
| 550 | switch (c) { |
| 551 | case '3': /* --ctorigsrc */ |
| 552 | ipparse_hostnetworkmask(optarg, &addr, &info->origsrc_mask.in, |
| 553 | &naddrs); |
| 554 | if (naddrs > 1) |
| 555 | exit_error(PARAMETER_PROBLEM, |
| 556 | "multiple IP addresses not allowed"); |
| 557 | if (naddrs == 1) |
| 558 | memcpy(&info->origsrc_addr.in, addr, sizeof(*addr)); |
| 559 | info->match_flags |= XT_CONNTRACK_ORIGSRC; |
| 560 | if (invert) |
| 561 | info->invert_flags |= XT_CONNTRACK_ORIGSRC; |
| 562 | break; |
| 563 | |
| 564 | case '4': /* --ctorigdst */ |
| 565 | ipparse_hostnetworkmask(optarg, &addr, &info->origdst_mask.in, |
| 566 | &naddrs); |
| 567 | if (naddrs > 1) |
| 568 | exit_error(PARAMETER_PROBLEM, |
| 569 | "multiple IP addresses not allowed"); |
| 570 | if (naddrs == 1) |
| 571 | memcpy(&info->origdst_addr.in, addr, sizeof(*addr)); |
| 572 | info->match_flags |= XT_CONNTRACK_ORIGDST; |
| 573 | if (invert) |
| 574 | info->invert_flags |= XT_CONNTRACK_ORIGDST; |
| 575 | break; |
| 576 | |
| 577 | case '5': /* --ctreplsrc */ |
| 578 | ipparse_hostnetworkmask(optarg, &addr, &info->replsrc_mask.in, |
| 579 | &naddrs); |
| 580 | if (naddrs > 1) |
| 581 | exit_error(PARAMETER_PROBLEM, |
| 582 | "multiple IP addresses not allowed"); |
| 583 | if (naddrs == 1) |
| 584 | memcpy(&info->replsrc_addr.in, addr, sizeof(*addr)); |
| 585 | info->match_flags |= XT_CONNTRACK_REPLSRC; |
| 586 | if (invert) |
| 587 | info->invert_flags |= XT_CONNTRACK_REPLSRC; |
| 588 | break; |
| 589 | |
| 590 | case '6': /* --ctrepldst */ |
| 591 | ipparse_hostnetworkmask(optarg, &addr, &info->repldst_mask.in, |
| 592 | &naddrs); |
| 593 | if (naddrs > 1) |
| 594 | exit_error(PARAMETER_PROBLEM, |
| 595 | "multiple IP addresses not allowed"); |
| 596 | if (naddrs == 1) |
| 597 | memcpy(&info->repldst_addr.in, addr, sizeof(*addr)); |
| 598 | info->match_flags |= XT_CONNTRACK_REPLDST; |
| 599 | if (invert) |
| 600 | info->invert_flags |= XT_CONNTRACK_REPLDST; |
| 601 | break; |
| 602 | |
| 603 | |
| 604 | default: |
| 605 | return conntrack_mt_parse(c, argv, invert, flags, match); |
| 606 | } |
| 607 | |
| 608 | *flags = info->match_flags; |
| 609 | return true; |
| 610 | } |
| 611 | |
| 612 | static int |
| 613 | conntrack_mt6_parse(int c, char **argv, int invert, unsigned int *flags, |
| 614 | const void *entry, struct xt_entry_match **match) |
| 615 | { |
| 616 | struct xt_conntrack_mtinfo1 *info = (void *)(*match)->data; |
| 617 | struct in6_addr *addr = NULL; |
| 618 | unsigned int naddrs = 0; |
| 619 | |
| 620 | switch (c) { |
| 621 | case '3': /* --ctorigsrc */ |
| 622 | ip6parse_hostnetworkmask(optarg, &addr, |
| 623 | &info->origsrc_mask.in6, &naddrs); |
| 624 | if (naddrs > 1) |
| 625 | exit_error(PARAMETER_PROBLEM, |
| 626 | "multiple IP addresses not allowed"); |
| 627 | if (naddrs == 1) |
| 628 | memcpy(&info->origsrc_addr.in6, addr, sizeof(*addr)); |
| 629 | info->match_flags |= XT_CONNTRACK_ORIGSRC; |
| 630 | if (invert) |
| 631 | info->invert_flags |= XT_CONNTRACK_ORIGSRC; |
| 632 | break; |
| 633 | |
| 634 | case '4': /* --ctorigdst */ |
| 635 | ip6parse_hostnetworkmask(optarg, &addr, |
| 636 | &info->origdst_mask.in6, &naddrs); |
| 637 | if (naddrs > 1) |
| 638 | exit_error(PARAMETER_PROBLEM, |
| 639 | "multiple IP addresses not allowed"); |
| 640 | if (naddrs == 1) |
| 641 | memcpy(&info->origdst_addr.in, addr, sizeof(*addr)); |
| 642 | info->match_flags |= XT_CONNTRACK_ORIGDST; |
| 643 | if (invert) |
| 644 | info->invert_flags |= XT_CONNTRACK_ORIGDST; |
| 645 | break; |
| 646 | |
| 647 | case '5': /* --ctreplsrc */ |
| 648 | ip6parse_hostnetworkmask(optarg, &addr, |
| 649 | &info->replsrc_mask.in6, &naddrs); |
| 650 | if (naddrs > 1) |
| 651 | exit_error(PARAMETER_PROBLEM, |
| 652 | "multiple IP addresses not allowed"); |
| 653 | if (naddrs == 1) |
| 654 | memcpy(&info->replsrc_addr.in, addr, sizeof(*addr)); |
| 655 | info->match_flags |= XT_CONNTRACK_REPLSRC; |
| 656 | if (invert) |
| 657 | info->invert_flags |= XT_CONNTRACK_REPLSRC; |
| 658 | break; |
| 659 | |
| 660 | case '6': /* --ctrepldst */ |
| 661 | ip6parse_hostnetworkmask(optarg, &addr, |
| 662 | &info->repldst_mask.in6, &naddrs); |
| 663 | if (naddrs > 1) |
| 664 | exit_error(PARAMETER_PROBLEM, |
| 665 | "multiple IP addresses not allowed"); |
| 666 | if (naddrs == 1) |
| 667 | memcpy(&info->repldst_addr.in, addr, sizeof(*addr)); |
| 668 | info->match_flags |= XT_CONNTRACK_REPLDST; |
| 669 | if (invert) |
| 670 | info->invert_flags |= XT_CONNTRACK_REPLDST; |
| 671 | break; |
| 672 | |
| 673 | |
| 674 | default: |
| 675 | return conntrack_mt_parse(c, argv, invert, flags, match); |
| 676 | } |
| 677 | |
| 678 | *flags = info->match_flags; |
| 679 | return true; |
| 680 | } |
| 681 | |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 682 | static void conntrack_mt_check(unsigned int flags) |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 683 | { |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 684 | if (flags == 0) |
Jan Engelhardt | a8ad34c | 2008-01-29 13:37:21 +0000 | [diff] [blame] | 685 | exit_error(PARAMETER_PROBLEM, "conntrack: At least one option " |
| 686 | "is required"); |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 687 | } |
| 688 | |
| 689 | static void |
| 690 | print_state(unsigned int statemask) |
| 691 | { |
| 692 | const char *sep = ""; |
| 693 | |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 694 | if (statemask & XT_CONNTRACK_STATE_INVALID) { |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 695 | printf("%sINVALID", sep); |
| 696 | sep = ","; |
| 697 | } |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 698 | if (statemask & XT_CONNTRACK_STATE_BIT(IP_CT_NEW)) { |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 699 | printf("%sNEW", sep); |
| 700 | sep = ","; |
| 701 | } |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 702 | if (statemask & XT_CONNTRACK_STATE_BIT(IP_CT_RELATED)) { |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 703 | printf("%sRELATED", sep); |
| 704 | sep = ","; |
| 705 | } |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 706 | if (statemask & XT_CONNTRACK_STATE_BIT(IP_CT_ESTABLISHED)) { |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 707 | printf("%sESTABLISHED", sep); |
| 708 | sep = ","; |
| 709 | } |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 710 | if (statemask & XT_CONNTRACK_STATE_UNTRACKED) { |
Harald Welte | 4dc734c | 2003-10-07 18:55:13 +0000 | [diff] [blame] | 711 | printf("%sUNTRACKED", sep); |
| 712 | sep = ","; |
| 713 | } |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 714 | if (statemask & XT_CONNTRACK_STATE_SNAT) { |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 715 | printf("%sSNAT", sep); |
| 716 | sep = ","; |
| 717 | } |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 718 | if (statemask & XT_CONNTRACK_STATE_DNAT) { |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 719 | printf("%sDNAT", sep); |
| 720 | sep = ","; |
| 721 | } |
| 722 | printf(" "); |
| 723 | } |
| 724 | |
| 725 | static void |
| 726 | print_status(unsigned int statusmask) |
| 727 | { |
| 728 | const char *sep = ""; |
| 729 | |
| 730 | if (statusmask & IPS_EXPECTED) { |
| 731 | printf("%sEXPECTED", sep); |
| 732 | sep = ","; |
| 733 | } |
| 734 | if (statusmask & IPS_SEEN_REPLY) { |
| 735 | printf("%sSEEN_REPLY", sep); |
| 736 | sep = ","; |
| 737 | } |
| 738 | if (statusmask & IPS_ASSURED) { |
| 739 | printf("%sASSURED", sep); |
| 740 | sep = ","; |
| 741 | } |
Harald Welte | a643c3e | 2003-08-25 11:08:52 +0000 | [diff] [blame] | 742 | if (statusmask & IPS_CONFIRMED) { |
| 743 | printf("%sCONFIRMED", sep); |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 744 | sep = ","; |
| 745 | } |
Jan Engelhardt | a8ad34c | 2008-01-29 13:37:21 +0000 | [diff] [blame] | 746 | if (statusmask == 0) |
| 747 | printf("%sNONE", sep); |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 748 | printf(" "); |
| 749 | } |
| 750 | |
| 751 | static void |
Jan Engelhardt | a8ad34c | 2008-01-29 13:37:21 +0000 | [diff] [blame] | 752 | conntrack_dump_addr(const union nf_inet_addr *addr, |
| 753 | const union nf_inet_addr *mask, |
| 754 | unsigned int family, bool numeric) |
| 755 | { |
Jan Engelhardt | 03d9948 | 2008-11-18 12:27:54 +0100 | [diff] [blame^] | 756 | if (family == NFPROTO_IPV4) { |
Jan Engelhardt | a8ad34c | 2008-01-29 13:37:21 +0000 | [diff] [blame] | 757 | if (!numeric && addr->ip == 0) { |
| 758 | printf("anywhere "); |
| 759 | return; |
| 760 | } |
Jan Engelhardt | 6b6c096 | 2008-11-10 17:08:07 +0100 | [diff] [blame] | 761 | if (numeric) |
| 762 | printf("%s ", ipaddr_to_numeric(&addr->in)); |
| 763 | else |
| 764 | printf("%s ", ipaddr_to_anyname(&addr->in)); |
Jan Engelhardt | 03d9948 | 2008-11-18 12:27:54 +0100 | [diff] [blame^] | 765 | } else if (family == NFPROTO_IPV6) { |
Jan Engelhardt | a8ad34c | 2008-01-29 13:37:21 +0000 | [diff] [blame] | 766 | if (!numeric && addr->ip6[0] == 0 && addr->ip6[1] == 0 && |
| 767 | addr->ip6[2] == 0 && addr->ip6[3] == 0) { |
| 768 | printf("anywhere "); |
| 769 | return; |
| 770 | } |
Jan Engelhardt | 6b6c096 | 2008-11-10 17:08:07 +0100 | [diff] [blame] | 771 | if (numeric) |
| 772 | printf("%s ", ip6addr_to_numeric(&addr->in6)); |
| 773 | else |
| 774 | printf("%s ", ip6addr_to_anyname(&addr->in6)); |
Jan Engelhardt | a8ad34c | 2008-01-29 13:37:21 +0000 | [diff] [blame] | 775 | } |
| 776 | } |
| 777 | |
| 778 | static void |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 779 | print_addr(struct in_addr *addr, struct in_addr *mask, int inv, int numeric) |
| 780 | { |
| 781 | char buf[BUFSIZ]; |
| 782 | |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 783 | if (inv) |
| 784 | printf("! "); |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 785 | |
| 786 | if (mask->s_addr == 0L && !numeric) |
| 787 | printf("%s ", "anywhere"); |
| 788 | else { |
| 789 | if (numeric) |
Jan Engelhardt | 08b1616 | 2008-01-20 13:36:08 +0000 | [diff] [blame] | 790 | sprintf(buf, "%s", ipaddr_to_numeric(addr)); |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 791 | else |
Jan Engelhardt | 08b1616 | 2008-01-20 13:36:08 +0000 | [diff] [blame] | 792 | sprintf(buf, "%s", ipaddr_to_anyname(addr)); |
| 793 | strcat(buf, ipmask_to_numeric(mask)); |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 794 | printf("%s ", buf); |
| 795 | } |
| 796 | } |
| 797 | |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 798 | static void |
Yasuyuki KOZAKAI | c0a9ab9 | 2007-07-24 06:02:05 +0000 | [diff] [blame] | 799 | matchinfo_print(const void *ip, const struct xt_entry_match *match, int numeric, const char *optpfx) |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 800 | { |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 801 | struct xt_conntrack_info *sinfo = (void *)match->data; |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 802 | |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 803 | if(sinfo->flags & XT_CONNTRACK_STATE) { |
| 804 | if (sinfo->invflags & XT_CONNTRACK_STATE) |
Michael Schwendt | dfba3ac | 2002-12-05 20:20:29 +0000 | [diff] [blame] | 805 | printf("! "); |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 806 | printf("%sctstate ", optpfx); |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 807 | print_state(sinfo->statemask); |
| 808 | } |
| 809 | |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 810 | if(sinfo->flags & XT_CONNTRACK_PROTO) { |
| 811 | if (sinfo->invflags & XT_CONNTRACK_PROTO) |
Phil Oester | 5a4892b | 2005-11-17 13:34:51 +0000 | [diff] [blame] | 812 | printf("! "); |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 813 | printf("%sctproto ", optpfx); |
Phil Oester | 5a4892b | 2005-11-17 13:34:51 +0000 | [diff] [blame] | 814 | printf("%u ", sinfo->tuple[IP_CT_DIR_ORIGINAL].dst.protonum); |
| 815 | } |
| 816 | |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 817 | if(sinfo->flags & XT_CONNTRACK_ORIGSRC) { |
| 818 | if (sinfo->invflags & XT_CONNTRACK_ORIGSRC) |
| 819 | printf("! "); |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 820 | printf("%sctorigsrc ", optpfx); |
| 821 | |
| 822 | print_addr( |
| 823 | (struct in_addr *)&sinfo->tuple[IP_CT_DIR_ORIGINAL].src.ip, |
| 824 | &sinfo->sipmsk[IP_CT_DIR_ORIGINAL], |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 825 | false, |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 826 | numeric); |
| 827 | } |
| 828 | |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 829 | if(sinfo->flags & XT_CONNTRACK_ORIGDST) { |
| 830 | if (sinfo->invflags & XT_CONNTRACK_ORIGDST) |
| 831 | printf("! "); |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 832 | printf("%sctorigdst ", optpfx); |
| 833 | |
| 834 | print_addr( |
| 835 | (struct in_addr *)&sinfo->tuple[IP_CT_DIR_ORIGINAL].dst.ip, |
| 836 | &sinfo->dipmsk[IP_CT_DIR_ORIGINAL], |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 837 | false, |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 838 | numeric); |
| 839 | } |
| 840 | |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 841 | if(sinfo->flags & XT_CONNTRACK_REPLSRC) { |
| 842 | if (sinfo->invflags & XT_CONNTRACK_REPLSRC) |
| 843 | printf("! "); |
Lutz Preßler | d0ae04e | 2003-03-04 14:50:50 +0000 | [diff] [blame] | 844 | printf("%sctreplsrc ", optpfx); |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 845 | |
| 846 | print_addr( |
| 847 | (struct in_addr *)&sinfo->tuple[IP_CT_DIR_REPLY].src.ip, |
| 848 | &sinfo->sipmsk[IP_CT_DIR_REPLY], |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 849 | false, |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 850 | numeric); |
| 851 | } |
| 852 | |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 853 | if(sinfo->flags & XT_CONNTRACK_REPLDST) { |
| 854 | if (sinfo->invflags & XT_CONNTRACK_REPLDST) |
| 855 | printf("! "); |
Lutz Preßler | d0ae04e | 2003-03-04 14:50:50 +0000 | [diff] [blame] | 856 | printf("%sctrepldst ", optpfx); |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 857 | |
| 858 | print_addr( |
| 859 | (struct in_addr *)&sinfo->tuple[IP_CT_DIR_REPLY].dst.ip, |
| 860 | &sinfo->dipmsk[IP_CT_DIR_REPLY], |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 861 | false, |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 862 | numeric); |
| 863 | } |
| 864 | |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 865 | if(sinfo->flags & XT_CONNTRACK_STATUS) { |
| 866 | if (sinfo->invflags & XT_CONNTRACK_STATUS) |
Michael Schwendt | dfba3ac | 2002-12-05 20:20:29 +0000 | [diff] [blame] | 867 | printf("! "); |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 868 | printf("%sctstatus ", optpfx); |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 869 | print_status(sinfo->statusmask); |
| 870 | } |
| 871 | |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 872 | if(sinfo->flags & XT_CONNTRACK_EXPIRES) { |
| 873 | if (sinfo->invflags & XT_CONNTRACK_EXPIRES) |
Michael Schwendt | dfba3ac | 2002-12-05 20:20:29 +0000 | [diff] [blame] | 874 | printf("! "); |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 875 | printf("%sctexpire ", optpfx); |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 876 | |
| 877 | if (sinfo->expires_max == sinfo->expires_min) |
| 878 | printf("%lu ", sinfo->expires_min); |
| 879 | else |
| 880 | printf("%lu:%lu ", sinfo->expires_min, sinfo->expires_max); |
| 881 | } |
Jan Engelhardt | c7fc1da | 2008-11-12 12:03:25 +0100 | [diff] [blame] | 882 | |
| 883 | if (sinfo->flags & XT_CONNTRACK_DIRECTION) { |
| 884 | if (sinfo->invflags & XT_CONNTRACK_DIRECTION) |
| 885 | printf("%sctdir REPLY", optpfx); |
| 886 | else |
| 887 | printf("%sctdir ORIGINAL", optpfx); |
| 888 | } |
| 889 | |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 890 | } |
| 891 | |
Jan Engelhardt | a8ad34c | 2008-01-29 13:37:21 +0000 | [diff] [blame] | 892 | static void |
| 893 | conntrack_dump(const struct xt_conntrack_mtinfo1 *info, const char *prefix, |
| 894 | unsigned int family, bool numeric) |
| 895 | { |
| 896 | if (info->match_flags & XT_CONNTRACK_STATE) { |
| 897 | if (info->invert_flags & XT_CONNTRACK_STATE) |
| 898 | printf("! "); |
| 899 | printf("%sctstate ", prefix); |
| 900 | print_state(info->state_mask); |
| 901 | } |
| 902 | |
| 903 | if (info->match_flags & XT_CONNTRACK_PROTO) { |
| 904 | if (info->invert_flags & XT_CONNTRACK_PROTO) |
| 905 | printf("! "); |
| 906 | printf("%sctproto %u ", prefix, info->l4proto); |
| 907 | } |
| 908 | |
| 909 | if (info->match_flags & XT_CONNTRACK_ORIGSRC) { |
| 910 | if (info->invert_flags & XT_CONNTRACK_PROTO) |
| 911 | printf("! "); |
| 912 | printf("%sctorigsrc ", prefix); |
| 913 | conntrack_dump_addr(&info->origsrc_addr, &info->origsrc_mask, |
| 914 | family, numeric); |
| 915 | } |
| 916 | |
| 917 | if (info->match_flags & XT_CONNTRACK_ORIGDST) { |
| 918 | if (info->invert_flags & XT_CONNTRACK_PROTO) |
| 919 | printf("! "); |
| 920 | printf("%sctorigdst ", prefix); |
| 921 | conntrack_dump_addr(&info->origdst_addr, &info->origdst_mask, |
| 922 | family, numeric); |
| 923 | } |
| 924 | |
| 925 | if (info->match_flags & XT_CONNTRACK_REPLSRC) { |
| 926 | if (info->invert_flags & XT_CONNTRACK_PROTO) |
| 927 | printf("! "); |
| 928 | printf("%sctreplsrc ", prefix); |
| 929 | conntrack_dump_addr(&info->replsrc_addr, &info->replsrc_mask, |
| 930 | family, numeric); |
| 931 | } |
| 932 | |
| 933 | if (info->match_flags & XT_CONNTRACK_REPLDST) { |
| 934 | if (info->invert_flags & XT_CONNTRACK_PROTO) |
| 935 | printf("! "); |
| 936 | printf("%sctrepldst ", prefix); |
| 937 | conntrack_dump_addr(&info->repldst_addr, &info->repldst_mask, |
| 938 | family, numeric); |
| 939 | } |
| 940 | |
| 941 | if (info->match_flags & XT_CONNTRACK_ORIGSRC_PORT) { |
| 942 | if (info->invert_flags & XT_CONNTRACK_ORIGSRC_PORT) |
| 943 | printf("! "); |
| 944 | printf("%sctorigsrcport %u ", prefix, |
| 945 | ntohs(info->origsrc_port)); |
| 946 | } |
| 947 | |
| 948 | if (info->match_flags & XT_CONNTRACK_ORIGDST_PORT) { |
| 949 | if (info->invert_flags & XT_CONNTRACK_ORIGDST_PORT) |
| 950 | printf("! "); |
| 951 | printf("%sctorigdstport %u ", prefix, |
| 952 | ntohs(info->origdst_port)); |
| 953 | } |
| 954 | |
| 955 | if (info->match_flags & XT_CONNTRACK_REPLSRC_PORT) { |
| 956 | if (info->invert_flags & XT_CONNTRACK_REPLSRC_PORT) |
| 957 | printf("! "); |
| 958 | printf("%sctreplsrcport %u ", prefix, |
| 959 | ntohs(info->replsrc_port)); |
| 960 | } |
| 961 | |
| 962 | if (info->match_flags & XT_CONNTRACK_REPLDST_PORT) { |
| 963 | if (info->invert_flags & XT_CONNTRACK_REPLDST_PORT) |
| 964 | printf("! "); |
| 965 | printf("%sctrepldstport %u ", prefix, |
| 966 | ntohs(info->repldst_port)); |
| 967 | } |
| 968 | |
| 969 | if (info->match_flags & XT_CONNTRACK_STATUS) { |
| 970 | if (info->invert_flags & XT_CONNTRACK_STATUS) |
| 971 | printf("! "); |
| 972 | printf("%sctstatus ", prefix); |
| 973 | print_status(info->status_mask); |
| 974 | } |
| 975 | |
| 976 | if (info->match_flags & XT_CONNTRACK_EXPIRES) { |
| 977 | if (info->invert_flags & XT_CONNTRACK_EXPIRES) |
| 978 | printf("! "); |
| 979 | printf("%sctexpire ", prefix); |
| 980 | |
| 981 | if (info->expires_max == info->expires_min) |
| 982 | printf("%u ", (unsigned int)info->expires_min); |
| 983 | else |
| 984 | printf("%u:%u ", (unsigned int)info->expires_min, |
| 985 | (unsigned int)info->expires_max); |
| 986 | } |
Jan Engelhardt | c7fc1da | 2008-11-12 12:03:25 +0100 | [diff] [blame] | 987 | |
| 988 | if (info->match_flags & XT_CONNTRACK_DIRECTION) { |
| 989 | if (info->invert_flags & XT_CONNTRACK_DIRECTION) |
| 990 | printf("%sctdir REPLY", prefix); |
| 991 | else |
| 992 | printf("%sctdir ORIGINAL", prefix); |
| 993 | } |
Jan Engelhardt | a8ad34c | 2008-01-29 13:37:21 +0000 | [diff] [blame] | 994 | } |
| 995 | |
Jan Engelhardt | 59d1640 | 2007-10-04 16:28:39 +0000 | [diff] [blame] | 996 | static void conntrack_print(const void *ip, const struct xt_entry_match *match, |
| 997 | int numeric) |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 998 | { |
| 999 | matchinfo_print(ip, match, numeric, ""); |
| 1000 | } |
| 1001 | |
Jan Engelhardt | a8ad34c | 2008-01-29 13:37:21 +0000 | [diff] [blame] | 1002 | static void |
| 1003 | conntrack_mt_print(const void *ip, const struct xt_entry_match *match, |
| 1004 | int numeric) |
| 1005 | { |
Jan Engelhardt | 03d9948 | 2008-11-18 12:27:54 +0100 | [diff] [blame^] | 1006 | conntrack_dump((const void *)match->data, "", NFPROTO_IPV4, numeric); |
Jan Engelhardt | a8ad34c | 2008-01-29 13:37:21 +0000 | [diff] [blame] | 1007 | } |
| 1008 | |
| 1009 | static void |
| 1010 | conntrack_mt6_print(const void *ip, const struct xt_entry_match *match, |
| 1011 | int numeric) |
| 1012 | { |
Jan Engelhardt | 03d9948 | 2008-11-18 12:27:54 +0100 | [diff] [blame^] | 1013 | conntrack_dump((const void *)match->data, "", NFPROTO_IPV6, numeric); |
Jan Engelhardt | a8ad34c | 2008-01-29 13:37:21 +0000 | [diff] [blame] | 1014 | } |
| 1015 | |
Jan Engelhardt | 59d1640 | 2007-10-04 16:28:39 +0000 | [diff] [blame] | 1016 | static void conntrack_save(const void *ip, const struct xt_entry_match *match) |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 1017 | { |
Joszef Kadlecsik | db503f9 | 2004-05-05 10:10:33 +0000 | [diff] [blame] | 1018 | matchinfo_print(ip, match, 1, "--"); |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 1019 | } |
| 1020 | |
Jan Engelhardt | a8ad34c | 2008-01-29 13:37:21 +0000 | [diff] [blame] | 1021 | static void conntrack_mt_save(const void *ip, |
| 1022 | const struct xt_entry_match *match) |
| 1023 | { |
Jan Engelhardt | 03d9948 | 2008-11-18 12:27:54 +0100 | [diff] [blame^] | 1024 | conntrack_dump((const void *)match->data, "--", NFPROTO_IPV4, true); |
Jan Engelhardt | a8ad34c | 2008-01-29 13:37:21 +0000 | [diff] [blame] | 1025 | } |
| 1026 | |
| 1027 | static void conntrack_mt6_save(const void *ip, |
| 1028 | const struct xt_entry_match *match) |
| 1029 | { |
Jan Engelhardt | 03d9948 | 2008-11-18 12:27:54 +0100 | [diff] [blame^] | 1030 | conntrack_dump((const void *)match->data, "--", NFPROTO_IPV6, true); |
Jan Engelhardt | a8ad34c | 2008-01-29 13:37:21 +0000 | [diff] [blame] | 1031 | } |
| 1032 | |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 1033 | static struct xtables_match conntrack_match = { |
Jan Engelhardt | 8b7c64d | 2008-04-15 11:48:25 +0200 | [diff] [blame] | 1034 | .version = XTABLES_VERSION, |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 1035 | .name = "conntrack", |
| 1036 | .revision = 0, |
Jan Engelhardt | 03d9948 | 2008-11-18 12:27:54 +0100 | [diff] [blame^] | 1037 | .family = NFPROTO_IPV4, |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 1038 | .size = XT_ALIGN(sizeof(struct xt_conntrack_info)), |
| 1039 | .userspacesize = XT_ALIGN(sizeof(struct xt_conntrack_info)), |
| 1040 | .help = conntrack_mt_help, |
| 1041 | .parse = conntrack_parse, |
| 1042 | .final_check = conntrack_mt_check, |
| 1043 | .print = conntrack_print, |
| 1044 | .save = conntrack_save, |
Jan Engelhardt | a8ad34c | 2008-01-29 13:37:21 +0000 | [diff] [blame] | 1045 | .extra_opts = conntrack_mt_opts_v0, |
| 1046 | }; |
| 1047 | |
| 1048 | static struct xtables_match conntrack_mt_reg = { |
Jan Engelhardt | 8b7c64d | 2008-04-15 11:48:25 +0200 | [diff] [blame] | 1049 | .version = XTABLES_VERSION, |
Jan Engelhardt | a8ad34c | 2008-01-29 13:37:21 +0000 | [diff] [blame] | 1050 | .name = "conntrack", |
| 1051 | .revision = 1, |
Jan Engelhardt | 03d9948 | 2008-11-18 12:27:54 +0100 | [diff] [blame^] | 1052 | .family = NFPROTO_IPV4, |
Jan Engelhardt | a8ad34c | 2008-01-29 13:37:21 +0000 | [diff] [blame] | 1053 | .size = XT_ALIGN(sizeof(struct xt_conntrack_mtinfo1)), |
| 1054 | .userspacesize = XT_ALIGN(sizeof(struct xt_conntrack_mtinfo1)), |
| 1055 | .help = conntrack_mt_help, |
| 1056 | .parse = conntrack_mt4_parse, |
| 1057 | .final_check = conntrack_mt_check, |
| 1058 | .print = conntrack_mt_print, |
| 1059 | .save = conntrack_mt_save, |
| 1060 | .extra_opts = conntrack_mt_opts, |
| 1061 | }; |
| 1062 | |
| 1063 | static struct xtables_match conntrack_mt6_reg = { |
Jan Engelhardt | 8b7c64d | 2008-04-15 11:48:25 +0200 | [diff] [blame] | 1064 | .version = XTABLES_VERSION, |
Jan Engelhardt | a8ad34c | 2008-01-29 13:37:21 +0000 | [diff] [blame] | 1065 | .name = "conntrack", |
| 1066 | .revision = 1, |
Jan Engelhardt | 03d9948 | 2008-11-18 12:27:54 +0100 | [diff] [blame^] | 1067 | .family = NFPROTO_IPV6, |
Jan Engelhardt | a8ad34c | 2008-01-29 13:37:21 +0000 | [diff] [blame] | 1068 | .size = XT_ALIGN(sizeof(struct xt_conntrack_mtinfo1)), |
| 1069 | .userspacesize = XT_ALIGN(sizeof(struct xt_conntrack_mtinfo1)), |
| 1070 | .help = conntrack_mt_help, |
| 1071 | .parse = conntrack_mt6_parse, |
| 1072 | .final_check = conntrack_mt_check, |
| 1073 | .print = conntrack_mt6_print, |
| 1074 | .save = conntrack_mt6_save, |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 1075 | .extra_opts = conntrack_mt_opts, |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 1076 | }; |
| 1077 | |
| 1078 | void _init(void) |
| 1079 | { |
Jan Engelhardt | a80b604 | 2008-01-20 13:34:07 +0000 | [diff] [blame] | 1080 | xtables_register_match(&conntrack_match); |
Jan Engelhardt | a8ad34c | 2008-01-29 13:37:21 +0000 | [diff] [blame] | 1081 | xtables_register_match(&conntrack_mt_reg); |
| 1082 | xtables_register_match(&conntrack_mt6_reg); |
Marc Boucher | 5054e85 | 2002-01-19 10:59:12 +0000 | [diff] [blame] | 1083 | } |